Can a RT system connect to NTP timeserver through a Proxy?

[maat]

Is it possible to have a RT system (compact fieldpoint in my case) connect to an NTP timeserver using a proxy?  I'd like to have my cFP system connect to a server once a week or so to make sure the time has not drifted too far off.  I tried the example which connects to the NIST NTP server but I am almost sure it is being blocked by our proxy.

Thanks,
Maat

[Will_S.]

Is the time server you are trying to connect to a NI Logos Time Server on a Windows machine? These are requirements for a time server to be used with FieldPoint. See below for more information for requirements on time servers:

http://digital.ni.com/public.nsf/allkb/51874D6CE1FC41AD86256D260070FC70?OpenDocument

http://digital.ni.com/public.nsf/allkb/C4E56AD6450FC5FD86256DFF0007FF01?OpenDocument

If your proxy server is in fact blocking the connection, then the proxy server should be set to allow connectivity between the device and server.

[maat]

The example I would like to use is this:

http://decibel.ni.com/content/docs/DOC-4394

It looks like it uses TCP to get the data, then uses the RT set time and date, so I shouldn't need a Logos Timeserver, right?  The problems I'm running into are

1.  Our desktop PC's are DHCP

2.  We have firewalls and proxys set by our corporate IT dept.

We don't get much leeway with the IT department...I was lucky enough to get a static IP for the cFP controller.  I haven't had any luck getting the example to run on my desktop either; I'm guessing this may not be an option for me.  The only other thing I can think of is to have a program run on my PC every so often and synch with the cFP and set the time that way, but I'm not really sure how to go about this.

Thanks again for your help,

[rolfk]

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maat wrote:

The example I would like to use is this:

http://decibel.ni.com/content/docs/DOC-4394

It looks like it uses TCP to get the data, then uses the RT set time and date, so I shouldn't need a Logos Timeserver, right?  The problems I'm running into are

1.  Our desktop PC's are DHCP

2.  We have firewalls and proxys set by our corporate IT dept.

We don't get much leeway with the IT department...I was lucky enough to get a static IP for the cFP controller.  I haven't had any luck getting the example to run on my desktop either; I'm guessing this may not be an option for me.  The only other thing I can think of is to have a program run on my PC every so often and synch with the cFP and set the time that way, but I'm not really sure how to go about this.

Thanks again for your help,

---

Since your FP has a static IP your IT departement could add an according exception to their corporate firewall to allow outgoing traffic on the NTP port for that IP adres. I can understand that an IP depeartement does not like to add exceptions since once you start with that it is an uphill battle to maintain all the exceptions everyone would like to have.

But it is a question of priorities. Is your application dependant on an exact timing? If so IT will have to serve you in some ways. If it is trough allowing NTPis another question. Another option would be to have somewhere a desktop machine that is maintained and controlled by IT and is itself time synchronized with whatever policy IT will support. then have the Logos timeserver installed on that and let the Fieldpoint module synchronize with that.

Rolf Kalbermatter